“Most of the wounded are children, beside some six teachers and a school supervisor,” the source said.

The victims were reportedly pulled from the ruins of the school building that was exposed to mass destruction due to the Russian strike, according to eyewitnesses.

“Some of the wounded are in critical condition, and the medical center in the town suffers a sharp shortage of medicines and equipment. The death toll may increase,” Salman told ARA News.

In Late September, Russia started an air campaign over Syria in support of the regime of President Bashar al-Assad.

Although Moscow claims its campaign is aimed at weakening the extremist group of Islamic State (ISIS) and other jihadi factions, Syrian opposition activists and western powers stress that the Russian airstrikes have been extensively bombing moderate rebels and residential neighborhoods in opposition-held areas across Syria.

Local documentation groups confirmed the death of more than 750 civilians in the Russian airstrikes in Syria since September 30.